To expand on what Twolanerider posted, if you look at the clutch master cylinder and hydraulic line you will probably notice that the highest point relative to the ground isn't the actual cylinder portion of the master cylinder, but is in fact the fitting for the hydraulic line. This high spot makes a convenient repository for air that doesn't ever make it's way back into the master cylinder to be purged, or down to the actuator to be bled at the bleeder valve. This is what I found on my stock SEEG, and I had to bleed the air out at the master cylinder fitting to finally get my clutch to work properly. If you significantly changed the angle of your master cylinder with the new bars, or removed and then reinstalled the hydraulic line, this may be your problem.
BTW, H-D actually has instructions in the manuals on how to bleed the clutch fluid line (as opposed to the actuator at the bleed valve). If your dealer is unaware of this, ask them to refer to the appropriate supplemental shop manual for your bike. Basically, it goes like this:
With the bars turned until the master cylinder is level, and holding the reservoir cover in place,
1. Pump the clutch hand lever 5 times.
2. Hold the lever against the grip.
3. Hold a shop towel under the fitting and slightly loosen the banjo bolt.
4. Watch the fitting for air bubbles.
5. Tighten banjo bolt.
6. Release clutch lever.
7. Check reservoir fluid level and refill to "Fill Level" as required.
8. Repeat the above process three or more times until only a steady stream of fluid escapes (no bubbles).
Be very careful to protect all painted surfaces, as the DOT 4 brake fluid will definitely damage paint.
After bleeding the hydraulic line, then bleed the actuator at the bleeder valve.
Jerry